//equipment 和 preTask只读, form和result可写
// form.testData = []
for (i = 0; i < form.gearsNumber; i++) {
  item = form.testData[i];
  item.oaVariatioTestDeviation =
    ((item.oaVariatioTestResult - item.variationVollage) /
      item.variationVollage) *
    100;
  item.obVariatioTestDeviation =
    ((item.obVariatioTestResult - item.variationVollage) /
      item.variationVollage) *
    100;
  item.ocVariatioTestDeviation =
    ((item.ocVariatioTestResult - item.variationVollage) /
      item.variationVollage) *
    100;
  item.oaVariatioTestDeviationShow = item.oaVariatioTestDeviation.toFixed(3);
  item.obVariatioTestDeviationShow = item.obVariatioTestDeviation.toFixed(3);
  item.ocVariatioTestDeviationShow = item.ocVariatioTestDeviation.toFixed(3);
}
